Hi all i got a surf last week its got a 3.8 in it and it looks to have been buggered around with a fair bit. it appears to have no vsvs in it. I followed the front vac lines back to a Y joiner so both vac ports on front of diff will be recieving even vacuum.
If i disconnect both lines and connect the right hand side port (driver side) direct to vacuum line then the front diff should engage right?

Hi all i got a surf last week its got a 3.8 in it and it looks to have been buggered around with a fair bit. it appears to have no vsvs in it. I followed the front vac lines back to a Y joiner so both vac ports on front of diff will be recieving even vacuum.
If i disconnect both lines and connect the right hand side port (driver side) direct to vacuum line then the front diff should engage right?

the vac of the 3.8 is diffrent even if you conect every thing up corectly
there a chance it still might not work or give a intermitting fault
the best solution is to convert the front diff from a automatic solenoid
type a manual type diff where you use locking hubs to engage the front diff
you dont have to change the whole diff just the left shaft and casing and
also change the outer hubs from solid to manual locking hubs